Toy construction block



FIG. 1 is a perspective view of a toy construction block showing my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a side elevational view thereof, the side opposite being a mirror image; and

FIG. 6 is a bottom plan view thereof. 

The ornamental design for a toy construction block, as shown and described. 